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  • Title: Amino acid deletions are introduced into the V2 region of gp120 during independent pathogenic simian immunodeficiency virus/HIV chimeric virus (SHIV) infections of rhesus monkeys generating variants that are macrophage tropic.
    Author: Imamichi H, Igarashi T, Imamichi T, Donau OK, Endo Y, Nishimura Y, Willey RL, Suffredini AF, Lane HC, Martin MA.
    Journal: Proc Natl Acad Sci U S A; 2002 Oct 15; 99(21):13813-8. PubMed ID: 12370415.
    Abstract:
    Highly pathogenic simian immunodeficiency virus/HIV chimeric viruses (SHIVs) cause extremely rapid, irreversible, and systemic depletions of CD4(+) T lymphocytes in inoculated rhesus monkeys. In the absence of this T cell subset, virus production can be sustained for several months by tissue macrophage. During independent infections of seven animals with uncloned virus stocks, SHIV variants emerged bearing amino acid deletions that affected specific residues of the gp120 V2 loop. Some of these macrophage-phase SHIVs replicated to high levels in alveolar macrophage.
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